Firdayanti A, S S. Development of Sales Information System to Improve Micro Business Efficiency in Underdeveloped Areas. J. Pengabdi. Masy. TAPIS BERSERI [Internet]. 2025 May 16 [cited 2026 Jan. 9];4(1):118-22. Available from: https://tapisberseri.ubl.ac.id/index.php/jpmtapisberseri/article/view/145